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Need some help on ls1 build ls6 heads

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Old Mar 3, 2014 | 01:23 PM
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Question Need some help on ls1 build ls6 heads

Also posted in gen 3 engine section. Didn't know which section was more appropriate for this thread.

Have:
a 7875 turbo from turbonetics.
CX racing A2A intercooler setup
CX racing exhaust manifold, wrapped.

Sent in some ls6 243 heads to Advanced induction to have them polished/ported with upgraded valvetrain (was planning on doing an N/A setup but changed my mind as most of us do lol). Ended up having them machine me a custom ls9 cam. Same specs as the ls9 but with higher lift (.600,.600). Also had them send me a ported ls6 oil pump. Going to upgrade the trans (m6) through tick. Stage 2 with a viper mainshaft. have a ford 9 inch that needs abs integrated into it. Going to run a holley dominator fuel pump.
Planning on running 14 psi on stock bottom end.

My goal is around 850-900hp on pump gas with hopefully decent mpg/drivability

My questions are: if I do get pistons, which ones are the best for the money as well as rods? Do I Need to upgrade the crank?(If I do, what differences safeties am I putting in place?) How will the how can I integrate the abs into the rear end as its an older ford 9? Do I Need to upgrade the ls1 timing chain? What gears should I put in the rear?(yes I know the 12 bolt is better but can't afford one lol. got the 9inch for free). Should I supercool the air into the intake manifold to get a better density per square inch in each cylinder?(If I do that, how much boost and what kit?) How will the ls9 cam with that lift be on driveability/performance/overlap?
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Old Mar 3, 2014 | 02:02 PM
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Wiseco gas ported pistons and their rods with upgraded wrist pins.

Yes, upgrade the timing chain. A lot of people use the LS2 one, we run a double roller on the 91 in my sig.

Gear ratio is up to you, 3.73/3.89 would be good IMO.
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Old Mar 3, 2014 | 02:07 PM
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Originally Posted by TooLateVTEC
Wiseco gas ported pistons and their rods with upgraded wrist pins.

Yes, upgrade the timing chain. A lot of people use the LS2 one, we run a double roller on the 91 in my sig.

Gear ratio is up to you, 3.73/3.89 would be good IMO.
For the gearing, I plan on doing a lot of roll racing and some track/drag racing. Will these gears be good for this then still? Link to ls2 chain set?
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Old Mar 3, 2014 | 07:16 PM
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Bumppp
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Old Mar 3, 2014 | 08:38 PM
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First that 7875 on 14 psi isn't going to get you 850-900.

The 9" is far superior to the 12 bolt.

Unless that ford 9" is already setup for a 4th gen f-body then modifying it to go in there if you don't have the experience is going to be more money then buying one.

No clue what supercool the air means.
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Old Mar 3, 2014 | 08:58 PM
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Originally Posted by MUSTANGBRKR02
First that 7875 on 14 psi isn't going to get you 850-900.

The 9" is far superior to the 12 bolt.

Unless that ford 9" is already setup for a 4th gen f-body then modifying it to go in there if you don't have the experience is going to be more money then buying one.



No clue what supercool the air means.
Super cool the air as in a CryO2 setup. The colder the air into the motor, denser the air can get per unit area, giving you a stronger combustion and thus, more power.
All id need is axles, gears, and abs retrofitted into it wouldnt I? Its not rocket science lol. Do I even Need abs or? And how much should I expect on 14 psi with this setup? I was just giving my goal, not what I expect
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Old Mar 4, 2014 | 01:12 AM
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Bumpppp
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